Effect of the sintering aids on optical and luminescence properties of Ce:YAG ceramics

Lukyashin, K. E.; Ищенко, А. В.; Шитов, В. А.; Shevelev, Vladimir; Victorov, L. V.

doi:10.1088/1757-899x/525/1/012035

Cited by 4 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Study of the luminescent properties of the Y 3-х Се х Al 5 O 12 samples for 450 nm excitation (Fig. 5) showed that the luminescence peaks are in the 535-545 nm region, these results being in a good agreement with the references [23][24][25][26]. The nature of the YAG : Ce luminescence spectra is related to electron energy transitions between the degenerate 5d levels of the excited state and two 4f levels of the main state of the Ce 3+ cations [27].…”

Section: Resultssupporting

confidence: 82%

Effect of vacuum sintering conditions on the properties of Y3Al5O12 : Ce luminescent ceramics

Tarala¹,

Кравцов²,

Chapura³

et al. 2022

MoEM

View full text Add to dashboard Cite

The aim of this work was to study the effect of vacuum sintering conditions and cerium concentration on the optical, luminescent and thermal properties of yttrium-aluminum garnet based ceramics doped with Се3+ cations. Series of ceramic powders were synthesized and samples of luminescent ceramics having the composition Y3-хСехAl5O12 were synthesized where x was in the range 0.01 to 0.025 f.u. We show that the phase composition and grain size distribution of the ceramic powders do not depend on cerium concentration. Without sintering additives, an increase in vacuum sintering temperature from 1675 to 1800 °C leads to an increase in the optical transmittance of luminescent ceramic specimens from 5 to 55% at a 540 nm wavelength and an increase in the thermal conductivity of the samples from 8.4 to 9.5 W/(m ∙ K). It was found that an increase in cerium concentration leads to a shift of the luminescent band peak from 535 to 545 nm where as the width of the luminescent band decreases with an increase in vacuum sintering temperature from 1675 to 1725 °C.

show abstract

Section: Resultssupporting

confidence: 82%

Effect of vacuum sintering conditions on the properties of Y3Al5O12 : Ce luminescent ceramics

Tarala¹,

Кравцов²,

Chapura³

et al. 2022

MoEM

View full text Add to dashboard Cite

show abstract

“…To maintain the total neutral charge of the system, it is advantageous for cerium ions to be in the Ce 4+ state. Silicon cations (Si 4+ ) promote the Ce 4+ → Ce 3+ transition, which is advantageous; however, defects created by silicon in the YAG:Ce lattice are the reason for the deterioration of luminescence 8 . In the absence of sintering additives, achieving optically transparent ceramics is difficult 9 .…”

Section: Introductionmentioning

confidence: 99%

“…Silicon cations (Si 4+ ) promote the Ce 4+ → Ce 3+ transition, which is advantageous; however, defects created by silicon in the YAG:Ce lattice are the reason for the deterioration of luminescence. 8 In the absence of sintering additives, achieving optically transparent ceramics is difficult. 9 Therefore, the search for new sintering additives to obtain optical luminescent YAG:Ce ceramics is relevant.…”

Section: Introductionmentioning

confidence: 99%

Silver nanoparticles as a new sintering additive for the fabrication of YAG:Ce optical luminescent ceramics

Kravtsov,

Medyanik,

Tarala

et al. 2023

J Am Ceram Soc.

View full text Add to dashboard Cite

In this study, silver nanoparticles (NPs) were considered for the first time as a sintering additive in the manufacture of YAG:Ce luminescent ceramics. The influence of the addition of silver NPs on the sintering kinetics of ceramics was investigated. It was found that the addition of Ag NPs in the concentration range of 0.027–0.44 wt% does not result in the formation of secondary phases in YAG:Ce ceramics. It was demonstrated that the light transmission of ceramics is dependent on the concentration of Ag NPs. The use of NPs additive has made it possible to increase the light transmission of ceramics compared with the reference sample without sintering additives. The combination of two sintering additives, TEOS and silver NPs, enables the achievement of enhanced optical transparency in ceramics compared to the individual application of sintering additives. At an optimal silver concentration of 0.11 wt%, in combination with 0.5 wt% TEOS, a ceramic light transmission value of 77% was attained. The study has identified a correlation between the luminescence intensity of YAG:Ce ceramics and the concentration of silver NPs. It was observed that the utilization of low concentrations of the Ag additive had negligible impact on the luminescence properties, whereas the introduction of high concentrations of Ag NPs led to a deterioration in the luminescence and optical transparency of the ceramic.

show abstract

Influence of MgO and CaO sintering additives on thermophysical, luminescent and optical properties of LuAG: Yb3+ laser ceramics

Lapin,

Kravtsov,

Suprunchuk

et al. 2024

Optical Materials

View full text Add to dashboard Cite

Effect of the sintering aids on optical and luminescence properties of Ce:YAG ceramics

Cited by 4 publications

References 9 publications

Effect of vacuum sintering conditions on the properties of Y3Al5O12 : Ce luminescent ceramics

Effect of vacuum sintering conditions on the properties of Y3Al5O12 : Ce luminescent ceramics

Silver nanoparticles as a new sintering additive for the fabrication of YAG:Ce optical luminescent ceramics

Influence of MgO and CaO sintering additives on thermophysical, luminescent and optical properties of LuAG: Yb3+ laser ceramics

Contact Info

Product

Resources

About